Do not return success after checking only the FIRST USE of a gep instruction.
Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8493 91177308-0d34-0410-b5e6-96231b3b80d8

Initial go at documentation for llc.
Pretty crufty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8492 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, bug distilled from bc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8491 91177308-0d34-0410-b5e6-96231b3b80d8

Minor optimization efficiency improvement:
  - Run mem2reg promotion first
  - Only rerun passes if the previous thing changed something

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8490 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling and grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8489 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code
Implement InstCombine/mul.ll:test9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8488 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8487 91177308-0d34-0410-b5e6-96231b3b80d8

Added the SetjmpLongjmp Makefile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8486 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the footer to be a link to the LLVM web page.
Organized the commands into three distinct groups on the main page.
Fixed the hyperlinks in the main page.
Removed as and dis; they will not exist with those names by Release 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8485 91177308-0d34-0410-b5e6-96231b3b80d8

Adding a skeleton for the LLVM Command Guide.
Hopefully the group as a whole will update this into a real guide.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8483 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling and grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8478 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Cleaned up the Makefile so that it uses VPATH to find source files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8477 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Added Makefile.spec to the list of files to copy to the object directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8476 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Added Makefile.spec to the list of files to copy to the object directory.
Moved the configuration of $SourceDir to Makefile.config and corrected the
conditional that surrounds it.  This allows SPEC to reset it and get the correct
VPATH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8475 91177308-0d34-0410-b5e6-96231b3b80d8

Apostrophes are only used for possession and quoting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8473 91177308-0d34-0410-b5e6-96231b3b80d8

scalarrepl now includes mem2reg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8472 91177308-0d34-0410-b5e6-96231b3b80d8

Integrate functionality of the mem2reg pass directly into this pass to make
the combination more effective

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8471 91177308-0d34-0410-b5e6-96231b3b80d8

Move the -indvars pass much later to where it is more likely to do good stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8470 91177308-0d34-0410-b5e6-96231b3b80d8

Renamed DominatorTree::Node::getNode() -> getBlock()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8469 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of the whole "Node2" business, rename getNode() ->getBlock() to
be more descriptive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8468 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `definite' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8467 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `definitely' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8466 91177308-0d34-0410-b5e6-96231b3b80d8

Removed the aposthrophes endings and the elipses suffixes from build output.
This makes the output more consistent, and I just find aposthrophes annoying.
:)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8465 91177308-0d34-0410-b5e6-96231b3b80d8

Check in the fix I meant to apply here, but mistakenly applied to
tools/extract instead..... heh

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8464 91177308-0d34-0410-b5e6-96231b3b80d8

* Move include files from middle of file to the top where they belong, moving
  the #define up there too
* Since we're including system headers, use the ones in include/llvm/Config
* While we're here, use the canonical LLVM header ordering algorithm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8463 91177308-0d34-0410-b5e6-96231b3b80d8

Unwind instructions are intrinsically alive, just like returns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8462 91177308-0d34-0410-b5e6-96231b3b80d8

Rework dominator interfaces to handle changes in the post-dominance
construction.  Now there may be multiple root blocks, and null is a
special node used to mark the "virtual" exit node of a CFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8461 91177308-0d34-0410-b5e6-96231b3b80d8

Rework post dominator information so that we do not have to
unify all exit nodes of a function to compute post-dominance information.
This does not work with functions that have both unwind and return nodes,
because we cannot unify these blocks.  The new implementation is better
anyway. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8460 91177308-0d34-0410-b5e6-96231b3b80d8

Rework dominator and post dominator information so that we do not have to
unify all exit nodes of a function to compute post-dominance information.
This does not work with functions that have both unwind and return nodes,
because we cannot unify these blocks.  The new implementation is better
anyway. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8459 91177308-0d34-0410-b5e6-96231b3b80d8

Update for new UnifyFunction... API
Remove using decl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8458 91177308-0d34-0410-b5e6-96231b3b80d8

Remove #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8457 91177308-0d34-0410-b5e6-96231b3b80d8

Expand the pass to unify all of the unwind blocks as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8456 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a bunch of warnings from the CBE generated C code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8455 91177308-0d34-0410-b5e6-96231b3b80d8

"the one true solution for compatibility with GCC 3.3+"

... or so I hope

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8454 91177308-0d34-0410-b5e6-96231b3b80d8

Be a little more specific about what is begin generated.  Only print
command line if VERBOSE=1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8453 91177308-0d34-0410-b5e6-96231b3b80d8

Only emit inter-field-padding if the amount of padding is != 0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8452 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up header, remove extra #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8451 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid dumping runtime library bytecode files into lib/Bytecode if building
into the source directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8450 91177308-0d34-0410-b5e6-96231b3b80d8

Make createVerifierPass return a FunctionPass *.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8449 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to reflect the new locations of SingleSource tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8447 91177308-0d34-0410-b5e6-96231b3b80d8

Remove using declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8442 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8440 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerated for Chris's updates, which adds several runtime library
directories.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8439 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing runtime directories

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8438 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warning when _POSIX_MAPPED_FILES is already defined in unistd.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8436 91177308-0d34-0410-b5e6-96231b3b80d8

another trivial cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8435 91177308-0d34-0410-b5e6-96231b3b80d8

Simplification of trip counting machinery.
  - make sure to check the indvar type before anything else (efficiency)
  - Make sure to insert the 'add' into the program, even though it'll be
    dead
  - Wrap code at 80 columns
  - Other minor cleanups to reduce indentation level

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8434 91177308-0d34-0410-b5e6-96231b3b80d8

Don't explicitly use $SourceDir to find the tblgen files.  This causes make
some confusion when trying to generate files (it probably couldn't tell that
./file and $(SourceDir)/file may be the same file).
Now, just let VPATH find everything, and list the primary tblgen file first in
the list of dependencies so that we can just use $< to reference it in the make
rule.

This should hopefully fix the nightly tester.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8433 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spello

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8432 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spell-o's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8431 91177308-0d34-0410-b5e6-96231b3b80d8

Spelling fixes.  I think that "cannonical" is ok, but "canonical" appears to
be the canonical form for the word

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8430 91177308-0d34-0410-b5e6-96231b3b80d8

Spelling fixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8429 91177308-0d34-0410-b5e6-96231b3b80d8

Fix up file header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8428 91177308-0d34-0410-b5e6-96231b3b80d8

clean up file header comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8427 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify some code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8426 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `occurrence' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8425 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to find source files using VPATH.  This makes writing build rules
much cleaner and easier.
Labeled .td as a suffix for tblgen files in Makefile.rules.
Modified build rules so that source files generated during the build are placed
in the build directory and not the source directory (and not in a Debug
directory).  This makes the system cleaner and allows us to have a read-only
source tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8424 91177308-0d34-0410-b5e6-96231b3b80d8

Removed Makefiles for directories that no longer exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8423 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: InstCombine/2003-09-09-VolatileLoadElim.ll
Loads "mayWriteToMemory" if they are volatile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8422 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase: do not DCE volatile loads!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8421 91177308-0d34-0410-b5e6-96231b3b80d8

Update testcases to be more modern

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8420 91177308-0d34-0410-b5e6-96231b3b80d8

Reverting back to the previous revision.
We want to check for length 5 because we might get the "llvm." string as the
name.  That string is in the LLVM namespace and should be checked as such.
We also don't have to worry about garbage data because (I believe) the string
class will return a valid value.  So, the switch statement will work and we
don't have to worry about the code wandering into segfault land.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8419 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the check for intrinsic functions.  All intrinsic functions have to
be at least 6 characters, since something must follow the "llvm." string in the
function name.
This seems to fix an assertion failure with the SingleSource tests, too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8418 91177308-0d34-0410-b5e6-96231b3b80d8

* Simplify printConstantValueOnly by moving the tail padding stuff directly
  into the struct case.
* Extend printConstantValueOnly to print .zero's if the initializer is zero
* Delete dead isConstantFunctionPointerRef function
* Emit the appropriate assembly for the various linkage types!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8417 91177308-0d34-0410-b5e6-96231b3b80d8

Updated the log of changes (as required by the Burg copyright) to give an
overview of what we changed (which is probably all that the author was looking
for).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8416 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the code so that we exit() with a non-zero value instead of calling
abort() when we can't open the input filename.  The abort() function generates
a core dump if possible and is meant for handling errors so grand that even the
program knows that debugging is necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8415 91177308-0d34-0410-b5e6-96231b3b80d8

Added the .t implicit rule.  You can now run an individual set of QMTests by
specifying "make <test>.t"
For example, make feature.t will run the feature tests.
Removed the QMTESTS variable since it is no longer used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8414 91177308-0d34-0410-b5e6-96231b3b80d8

Oops, look at the VOLATILE marker, not the opcode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8413 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate the unwind intrinsic, it is now an instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8412 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate support for the llvm.unwind intrinisic, using the Unwind instruction instead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8411 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8410 91177308-0d34-0410-b5e6-96231b3b80d8

Should invokify is always true

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8409 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the unwind instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8408 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for unwind

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8407 91177308-0d34-0410-b5e6-96231b3b80d8

add support for the unwind inst

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8406 91177308-0d34-0410-b5e6-96231b3b80d8

Add the unwind instruction class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8405 91177308-0d34-0410-b5e6-96231b3b80d8

Add new unwind instruction.  Happily there was a slot leftover from when the
'not' instruction was removed long ago

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8404 91177308-0d34-0410-b5e6-96231b3b80d8

Add info about volatile loads/stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8403 91177308-0d34-0410-b5e6-96231b3b80d8

Parse volatile loads/stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8402 91177308-0d34-0410-b5e6-96231b3b80d8

Read volatile loads/stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8401 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a bunch of unneeded stuph

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8400 91177308-0d34-0410-b5e6-96231b3b80d8

Do not hoist volatile loads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8399 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: RLE-Preserve-Volatile.ll
Volatile loads and stores must not be value numbered

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8398 91177308-0d34-0410-b5e6-96231b3b80d8

syntax highlightify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8397 91177308-0d34-0410-b5e6-96231b3b80d8

Syntax hilight

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8396 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a gross hack that was there to support bytecode files that are over a year old.
If you still have these suckers laying around, you have GOT to rebuild them.  geeze.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8395 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for writing volatile load/stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8394 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for volatile loads/stores

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8393 91177308-0d34-0410-b5e6-96231b3b80d8

Fix grammar-o

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8392 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8391 91177308-0d34-0410-b5e6-96231b3b80d8

Fix old style test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8390 91177308-0d34-0410-b5e6-96231b3b80d8

Fix syntax error when makellvm is run in an invalid directory.
Add debugging support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8389 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `occurrence' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8388 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling of `intentionally'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8387 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unneeded #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8386 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin of autoconf-style object root.

Updated Makefile for new autoconf-style object root.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8385 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin of autoconf-style object root.

Copies Makefiles into the new object root directory from the source directory.
Removed the --with-objroot option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8384 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin of autoconf-style object root.

Updated TestRunner tests so that they work correctly in a separate object root
directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8383 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin of autoconf-style object root.

Use QMTest for the feature and Regression tests.
Continue using the Makefile system for the Programs tests.
Adjusted the Makefile rules to handle building outside the source directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8381 91177308-0d34-0410-b5e6-96231b3b80d8

Checkin of autoconf-style object root.
Modified Makefiles to use the new Makefile setup in LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8380 91177308-0d34-0410-b5e6-96231b3b80d8